CN206943016U - A kind of anti abrasive single-stage double-suction middle-opening pump - Google Patents
A kind of anti abrasive single-stage double-suction middle-opening pump Download PDFInfo
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- CN206943016U CN206943016U CN201720593518.XU CN201720593518U CN206943016U CN 206943016 U CN206943016 U CN 206943016U CN 201720593518 U CN201720593518 U CN 201720593518U CN 206943016 U CN206943016 U CN 206943016U
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- impeller
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Abstract
The utility model discloses a kind of anti abrasive single-stage double-suction middle-opening pump, and it includes fore bearing part, rear parts of bearings and the rotor part through them；Rotor part includes pump shaft, key, impeller, impeller interstage sleeve, impeller interstage sleeve is connected to impeller and the pump housing coordinated with impeller, the pump housing is connected by fastener with fore bearing part and rear parts of bearings, and casing ring is provided between the pump housing and impeller, and the both sides of the pump housing are provided with pump cover；Rotor part is provided with stuffing seal, and stuffing seal includes sealing axle sleeve, filler interstage sleeve, packing ring, filler, gland, O-ring, sleeve nut, holding screw；The impeller ring with impeller interference fit is provided with impeller, impeller ring is fixed with impeller by junction of the edges of two sheets of paper mode connects for screw, and impeller ring coordinates with casing ring for gap.Abrasion resistance properties are added, improve the service life of pump, compact-sized, easy to operate, stable, small volume, there is very strong practical and popularizing value.
Description
Technical field
Middle-opening pump field is the utility model is related to, specially a kind of anti abrasive single-stage double-suction middle-opening pump.
Background technology
Single-stage double-suction middle-opening pump is also referred to as single-stage double-suction middle-opening formula centrifugal pump, and single-stage double-suction middle-opening pump general action is in needs
Big flow operating area, flow is big, and lift does not need too high recirculated water and feedwater application scenario, such as large-scale steel mill's metallurgy row
Industry（Tang Gang, Anshan iron and steel plant, Mei Gang）, plumbing, heating, plant drainage, farmland water drainage, air-conditioning system are irrigated in steam power plant and power station, city
Unite water supply, the feedwater of mine fire-fighting system, refinery, mine, chemical plant, textile industry, paper mill, oil field, airport construction,
All kinds of hydraulic engineerings such as river, lake, the medium containing silt or particle etc in water.
Traditional single-stage double-suction middle-opening pump seal axle sleeve is easily directly entered without thread rotary orientation, the medium of suction chamber
Axle sleeve is worn inside annular seal space, during pump operation, suction chamber and pumping chamber pressure difference difference are larger, cause medium to get into pump
In the gap of body sealing ring and impeller, long term wear casing ring and impeller.
Utility model content
The purpose of this utility model is to be directed to problem above, there is provided a kind of anti abrasive single-stage double-suction middle-opening pump, is added
Abrasion resistance properties, the service life of pump is improved, compact-sized, easy to operate, stable, small volume, there is very strong practicality
And promotional value.
To realize object above, the technical solution adopted in the utility model is：A kind of anti abrasive single-stage double-suction middle-opening pump,
It includes fore bearing part（1）, rear parts of bearings（7）With the rotor part through them（2）；The rotor part（2）Including
Pump shaft, key, impeller（9）, impeller interstage sleeve（11）, the impeller interstage sleeve（11）It is connected to impeller（9）With with impeller（9）The pump housing of cooperation
（3）, the pump housing（3）Pass through fastener and fore bearing part（1）And rear parts of bearings（7）Connection, the described pump housing（3）And leaf
Wheel（9）Between be provided with casing ring（5）, the pump housing（3）Both sides be provided with pump cover（4）；Described rotor part（2）
It is provided with stuffing seal（6）, described stuffing seal（6）Including sealing axle sleeve（12）, filler interstage sleeve（13）, filler
Ring（14）, filler（15）, gland（16）, O-ring（17）, sleeve nut（18）, holding screw（19）；The impeller（9）
On be provided with and impeller（9）The impeller ring of interference fit（8）, the impeller ring（8）With impeller（9）Pass through junction of the edges of two sheets of paper spiral shell
Nail（10）It is connected, impeller ring（8）With casing ring（5）Coordinate for gap；The impeller ring（8）With sealing
Axle sleeve（12）On be provided with the helicla flute in same-handed direction.
Further, the casing ring（5）It is provided with the crisperding of arc-shaped（501）, and it is provided with multiple connection water suctions
Room and the pressure relief vent of pumping chamber（502）.
Further, the impeller interstage sleeve（11）With the pump housing（3）, pump cover（4）, impeller（9）The tangent transition of circular arc runner.
Further, the filler interstage sleeve（13）With the pump housing（3）, pump cover（4）Between coordinate for seam, and and sealing axle sleeve
（12）Between leave the unilateral gap for 0.2mm~0.3mm.
Further, the packing ring（14）Outside is provided with the filler that three are oiliness polytetrafluoroethylene (PTFE)（15）.
Further, described gland（16）Penetrate sealing axle sleeve（12）Internal end face is inclined-plane.
Further, the impeller ring（8）And sealing axle sleeve（12）The rotation direction of helicla flute is opposite with liquid flow direction.
The beneficial effects of the utility model：Abrasion resistance properties are added, improve the service life of pump, compact-sized, operation
It is convenient, stable, small volume, there is very strong practical and popularizing value.
Turned to 1. seal shaft is cased with two kinds of screw threads, when liquid sucks in from the import of pump, by the suction of impeller both sides import
Hydroecium, is transported to the pumping chamber of pump, the hand of spiral of both sides sealing axle sleeve just with the flow direction of liquid on the contrary, so both sides it is close
Envelope sleeve thread direction is reverse, and it is close that reverse effect prevents that gap location of the liquid between sealing axle sleeve and filler interstage sleeve from flowing into filler
Seal apparatus, prevent impure liquid from entering stuffing seal, cause to rub between filler and sealing axle sleeve, seal shaft
Cover frayed, lose sealing function.
2. casing ring carries the crisperding for being easy to flow backwards, pressure relief vent is provided with, for balancing suction chamber and pumping chamber both sides
Pressure, between impeller ring and impeller using interference fit, be mounted in impeller ring and leaf with junction of the edges of two sheets of paper screw after assembling
Among wheel, fixed impeller and impeller ring, after impeller ring wears, an impeller ring need to only be changed by changing part, section
About cost, while the gap between casing ring and impeller ring, designed according to API610 standards, it is more resistant.
Brief description of the drawings
Fig. 1 is a kind of anti abrasive single-stage double-suction middle-opening pump configuration schematic diagram.
Fig. 2 is the partial enlargement structural representation of stuffing seal.
Fig. 3 is the close-up schematic view at P in Fig. 1.
Fig. 4 is the structural representation of casing ring.
Fig. 5 is the structural representation of impeller ring.
Fig. 6 is the structural representation of sealing axle sleeve.
Label character is expressed as described in figure：1st, fore bearing part；2nd, rotor part；3rd, the pump housing；4th, pump cover；5th, the pump housing is close
Seal ring；6th, stuffing seal；7th, rear parts of bearings；8th, impeller ring；9th, impeller；10th, junction of the edges of two sheets of paper screw；11st, impeller interstage sleeve；
12nd, sealing axle sleeve；13rd, filler interstage sleeve；14th, packing ring；15th, filler；16th, gland；17th, O-ring；18th, sleeve nut；
19th, holding screw；20th, annular seal space；501st, crisperding；502nd, pressure relief vent.
Embodiment
In order that those skilled in the art more fully understand the technical solution of the utility model, below in conjunction with the accompanying drawings to this reality
Be described in detail with new, the description of this part be only it is exemplary and explanatory, should not be to the scope of protection of the utility model
There is any restriction effect.
As shown in figs 1 to 6, concrete structure of the present utility model is：It includes fore bearing part 1, the and of rear parts of bearings 7
Through their rotor part 2, described rotor part 2 is provided with stuffing seal 6, and rotor part 2 includes pump shaft, impeller
9th, impeller interstage sleeve 11, key, impeller interstage sleeve 11 be connected to impeller 9 and with impeller 9 coordinate the pump housing 3, and the pump housing 3 by fastener with before
Parts of bearings 1 and rear parts of bearings 7 are connected, and sealing ring, the both sides of the pump housing are provided between the described pump housing 3 and impeller 9
Pump cover 4 is provided with, stuffing seal 6 is combined with the pump cover 4 of both sides, described stuffing seal 6 includes sealing axle sleeve
12nd, filler interstage sleeve 13, packing ring 14, filler 15, gland 16, O-ring 17, sleeve nut 18, holding screw 19.
Preferably, the sealing axle sleeve 12 has two kinds of thread rotary orientations（Such as Fig. 6）, when liquid sucks in from the import of pump, warp
Cross the suction chamber of impeller both sides import, be transported to the pumping chamber of pump, the hand of spiral of both sides sealing axle sleeve 12 just with liquid
For flow direction on the contrary, so the hand of spiral of sealing axle sleeve 12 on both sides is reverse, reverse effect prevents liquid from sealing axle sleeve 12 with filling out
Expect that the gap location of interstage sleeve 13 flows into packing seal chamber 20, prevent impure or particle liquid from entering stuffing seal 6, cause
Rubbed between filler 15 and sealing axle sleeve 12, sealing axle sleeve 12 is frayed, loses sealing function.
Preferably, described sealing ring has casing ring 5 and impeller ring 8, and casing ring 5, which carries, to be easy to flow backwards
Crisperding 501, be provided with pressure relief vent 502, for balancing the pressure of suction chamber and pumping chamber both sides, impeller ring 8 and impeller 9 it
Between using interference fit, after assembling with junction of the edges of two sheets of paper screw 10 among impeller ring 8 and impeller 9, fixed impeller 9 and impeller
Sealing ring 8, after impeller ring 8 wears, an impeller ring 8 need to only be changed by changing accessory, and such structure is cost-effective,
Gap between casing ring 5 and impeller ring 8 simultaneously, designed according to API610 standards, it is more resistant.
Preferably, described impeller interstage sleeve 11 be designed to the pump housing 3, pump cover 4, impeller 9 runner into transition arc, be easy to
Fluid can the smooth import for flowing into impeller 9.
Preferably, it is provided between described sealing axle sleeve 12 and filler interstage sleeve 13 with rotating reverse thread groove, prevents from containing
The medium of particle enters annular seal space 20.
Preferably, described filler interstage sleeve 13 coordinates with the pump cover 4 of the pump housing 3 for seam, has unilateral 0.3mm with sealing axle sleeve 12
Gap, be easy to flushing liquor to discharge.
Preferably, described filler 15 is oiliness polytetrafluoroethylene packing, and the outside of packing ring 14 is provided with 3 oiliness
Polytetrafluoroethylene packing.
Preferably, the end face that described gland 16 is penetrated inside sealing axle sleeve 12 is inclined-plane.
Preferably, described O-ring 17 is prevented from the leakage medium of sealing axle sleeve 12 to outside.
Preferably, described sleeve nut 18 is used for lock sealing axle sleeve 12, prevents rotor shifting.
Preferably, described holding screw 19 is used for fixed hub nut 18, prevents from rotating.
It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row
His property includes, so that process, method, article or equipment including a series of elements not only include those key elements, and
And also include the other element being not expressly set out, or also include for this process, method, article or equipment institute inherently
Key element.
Specific case used herein is set forth to principle of the present utility model and embodiment, above example
Illustrate that being only intended to help understands method and its core concept of the present utility model.Described above is only of the present utility model preferred
Embodiment, it is noted that due to the finiteness of literal expression, and unlimited concrete structure objectively be present, for this technology
For the those of ordinary skill in field, on the premise of the utility model principle is not departed from, some improvement, retouching can also be made
Or change, above-mentioned technical characteristic can also be combined by rights；These improve retouching, change or combination, or not
It is improved that the design of utility model and technical scheme are directly applied into other occasions, it is regarded as protection of the present utility model
Scope.
Claims (7)
1. a kind of anti abrasive single-stage double-suction middle-opening pump, it is characterised in that it includes fore bearing part（1）, rear parts of bearings（7）
With the rotor part through them（2）；The rotor part（2）Including pump shaft, key, impeller（9）, impeller interstage sleeve（11）, it is described
Impeller interstage sleeve（11）It is connected to impeller（9）With with impeller（9）The pump housing of cooperation（3）, the pump housing（3）Pass through fastener and fore bearing
Part（1）And rear parts of bearings（7）Connection, the described pump housing（3）And impeller（9）Between be provided with casing ring（5）, it is described
The pump housing（3）Both sides be provided with pump cover（4）；Described rotor part（2）It is provided with stuffing seal（6）, described filler
Sealing device（6）Including sealing axle sleeve（12）, filler interstage sleeve（13）, packing ring（14）, filler（15）, gland（16）, O shapes
Circle（17）, sleeve nut（18）, holding screw（19）；The impeller（9）On be provided with and impeller（9）The impeller of interference fit is close
Seal ring（8）, the impeller ring（8）With impeller（9）Pass through junction of the edges of two sheets of paper screw（10）It is connected, impeller ring（8）With pump
Body sealing ring（5）Coordinate for gap；The impeller ring（8）With sealing axle sleeve（12）On be provided with the spiral shell in same-handed direction
Spin slot.
A kind of 2. anti abrasive single-stage double-suction middle-opening pump according to claim 1, it is characterised in that the casing ring
（5）It is provided with the crisperding of arc-shaped（501）, and it is provided with the pressure relief vent of multiple connection suction chambers and pumping chamber（502）.
A kind of 3. anti abrasive single-stage double-suction middle-opening pump according to claim 1, it is characterised in that the impeller interstage sleeve
（11）With the pump housing（3）, pump cover（4）, impeller（9）The tangent transition of circular arc runner.
A kind of 4. anti abrasive single-stage double-suction middle-opening pump according to claim 1, it is characterised in that the filler interstage sleeve
（13）With the pump housing（3）, pump cover（4）Between coordinate for seam, and and sealing axle sleeve（12）Between leave it is unilateral for 0.2mm~
0.3mm gap.
A kind of 5. anti abrasive single-stage double-suction middle-opening pump according to claim 1, it is characterised in that the packing ring（14）
Outside is provided with the filler that three are oiliness polytetrafluoroethylene (PTFE)（15）.
A kind of 6. anti abrasive single-stage double-suction middle-opening pump according to claim 1, it is characterised in that described gland
（16）Penetrate sealing axle sleeve（12）Internal end face is inclined-plane.
A kind of 7. anti abrasive single-stage double-suction middle-opening pump according to claim 1, it is characterised in that the impeller ring
（8）And sealing axle sleeve（12）The rotation direction of helicla flute is opposite with liquid flow direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720593518.XU CN206943016U (en) | 2017-05-25 | 2017-05-25 | A kind of anti abrasive single-stage double-suction middle-opening pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720593518.XU CN206943016U (en) | 2017-05-25 | 2017-05-25 | A kind of anti abrasive single-stage double-suction middle-opening pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206943016U true CN206943016U (en) | 2018-01-30 |
Family
ID=61363248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720593518.XU Active CN206943016U (en) | 2017-05-25 | 2017-05-25 | A kind of anti abrasive single-stage double-suction middle-opening pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206943016U (en) |
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2017
- 2017-05-25 CN CN201720593518.XU patent/CN206943016U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230628 Address after: No. 31 Huancheng South Road, Zhongguan Town, Deqing County, Huzhou City, Zhejiang Province, 313000 Patentee after: Zhejiang Nanfang Pump Industry Co.,Ltd. Address before: No. 45, Xichong Road, Quantang Subdistrict, Xingsha Economic and Technological Development Zone, Changsha City, Hunan Province 410100 Patentee before: HUNAN NANFANG CHANGHE PUMP INDUSTRY CO.,LTD. |
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| TR01 | Transfer of patent right |